The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2025
Filed:
Apr. 20, 2025
Zhejiang Jinmo Environmental Technology Co., Ltd, Zhejiang, CN;
Yinong Xu, Zhejiang, CN;
Donggen Chen, Zhejiang, CN;
Peng Liu, Zhejiang, CN;
Zedong Li, Zhejiang, CN;
Kan Zhang, Zhejiang, CN;
Zhonghua Li, Zhejiang, CN;
Qicheng Ren, Zhejiang, CN;
Rui Liu, Zhejiang, CN;
Zhejiang Jinmo Environmental Technology Co., Ltd, Zhejiang, CN;
Abstract
The invention provides a preparation method for a reverse osmosis membrane resistant to a high-temperature water environment, comprising: synthesizing an α-cyclodextrin@polyethylene glycol supramolecular inclusion complex by a saturated aqueous solution coprecipitation method; preparing an aqueous phase solution containing m-phenylenediamine, D(+) camphorsulfonic acid and triethylamine; preparing an oil phase solution containing trimesoyl chloride; preparing a secondary aqueous solution containing α-cyclodextrin@polyethylene glycol powder and triethylamine; forming an ultrathin polyamide separation layer on a base membrane by interfacial polymerization; and performing secondary interfacial polymerization to form an α-CD@PEG polyester protection layer, and storing a prepared reverse osmosis membrane in ultrapure water.